import java.util.Deque;
import java.util.LinkedList;

public class Test {

    public static void main(String[] args) {
        Deque<Integer> deque=new LinkedList<>();

    }

    public static void main1(String[] args) {
        MyQueue myQueue=new MyQueue();
        myQueue.offer(1);
        myQueue.offer(2);
        myQueue.offer(3);
        System.out.println(myQueue.peek());
        System.out.println(myQueue.poll());
        System.out.println(myQueue.peek());
        System.out.println(myQueue.Empty());
    }
}
